<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>无序列表</title>
</head>
<body>

<h4>一个无序列表：</h4>
<ul>
  <li>咖啡</li>
  <li>茶</li>
  <li>牛奶</li>
</ul>

</body>
</html>